{
  "id": 17508,
  "url": "https://simonwillison.net/2026/Aug/7/moonlight-mayhem",
  "title": "Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra)",
  "summary": "Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra) On Wednesday I wrote about One-shotting a Raccoon Heist game using Claude Fable 5 , where I had Claude Fable 5 build a full working game from a premise I generated with GPT-3 and DALL-E four years ago . I decided to pose the exact same prompt to Codex Desktop running GPT-5.6 Sol Ultra - the mode where Sol makes aggressive use of sub-agents - to see how it would do. It produced a much better game! Here's Moonlight & Mayhem - GitHub r",
  "authors": null,
  "category": "org",
  "topics": "agents-autonomy",
  "orgs": "openai",
  "regions": null,
  "published_at": "2026-08-07T19:18:09.000Z",
  "fetched_at": "2026-08-08T05:10:34.355Z",
  "source_slug": "x-simon-willisons-weblog",
  "source_name": "Simon Willisons Weblog",
  "source_homepage": "https://simonwillison.net",
  "ethics_ai_record_url": "https://ethics.ai/record/17508",
  "original_url": "https://simonwillison.net/2026/Aug/7/moonlight-mayhem",
  "evidence_status": "source-only",
  "attribution": "via ethics.ai"
}